Related Manuals for Electrolux EI30SM55JB
Summary of Contents for Electrolux EI30SM55JB
- Page 1 Technical Service Manual Over The Range Microwave Oven Models EI30SM55JB EI30SM55JS EI30SM55JW Publication #5995563474 P/N 316439605 April 2010...
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Page 3: Safe Servicing Practices
All non-insulated electrical terminals, connectors, heaters, etc. are adequately spaced away from all metal parts and panels. • All safety grounds (both internal and external) are correctly and securely connected. • All panels are properly and securely reassembled. © 2010 Electrolux Home Products, Inc. -
Page 4: Table Of Contents
Basic Information This Manual has been prepared to provide Electrolux Service Personnel with Operation and Service Information for Electrolux Microwave Oven EI30SM55JB, EI30SM55JS and EI30SM55JW. Table of Contents Section 1 Basic Information Section 3 Troubleshooting and Error Codes Safe Servicing Practices .......... - Page 5 THIS SERVICE MANUAL IS INTENDED FOR USE BY PERSONS HAVING ELECTRICAL AND MECHANICAL TRAINING AND A LEVEL OF KNOWLEDGE OF THESE SUBJECTS GENERALLY CONSIDERED ACCEPTABLE IN THE APPLIANCE REPAIR TRADE. ELECTROLUX HOME PRODUCTS CANNOT BE RESPONSIBLE, NOR ASSUME ANY LIABILITY, FOR INJURY OR DAMAGE OF ANY KIND ARISING FROM THE USE OF THIS MANUAL.
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Page 6: Precautions To Be Observed Before And During Servicing To Avoid Possible Exposure To Excessive Microwave Energy
Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement Procedure outlined in this service manual. If microwave emissions level is in excess of the specified limit, contact ELECTROLUX HOME PRODUCTS, INC. immediately. If the unit operates with the door open, service person should: 1) Tell the user not to operate the oven. -
Page 7: Before Servicing
Basic Information MICROWAVE OVENS CONTAIN CIRCUITRY CAPABLE OF PRODUCING VERY HIGH VOLTAGE AND CURRENT. CONTACT WITH THE FOLLOWING PARTS MAY RESULT IN A SEVERE, POSSIBLY FATAL, ELECTRICAL SHOCK. INVERTER UNIT, THAT INCLUDES HIGH VOLTAGE CAPACITOR, HIGH VOLTAGE POWER TRANSFORMER, HIGH VOLTAGE RECTIFIER, HEAT SINK ETC., AND MAGNETRON, HIGH VOLTAGE HARNESS ETC.. -
Page 8: Microwave Measurement Procedure Usa
Basic Information Microwave Measurement Procedure (USA) A. Requirements: 1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed 1 mW/cm 2 at any point 5 cm or more from the external surface of the oven, measured prior to acquisition by a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm 2 at any point 5 cm or more from the external surface of the oven. -
Page 9: Microwave Measurement Procedure Canada
Basic Information Microwave Measurement Procedure (Canada) After adjustment of the door switches are completed individually or collectively, switch test and microwave leakage test must be performed with survey instrument and test result must be confirmed to meet the requirement of the performance standard for microwave ovens as under mentioned. -
Page 10: Product Specification
Basic Information Product Specification Item Description Power Requirements (USA)120 Volts / 14.3 Amperes 60 Hertz Single phase, 3 wire grounded Power Output 1000 watts (IEC 705 Test Procedure) Operating frequency of 2450MHz Outside Case Dimensions Width 29-15/16” Height 16-1/16” Depth 18-15/32” Cooking Cavity Dimensions Width 22-1/2”... -
Page 11: Grounding Instructions
Basic Information Grounding Instructions Discharging Capacitor High Voltage Warning! This oven is equipped with a three prong grounding plug. It must be plugged into a wall receptacle that is properly Do not attempt to measure any of the high voltages, installed and grounded in accordance with the National this includes the filament voltage of the magnetron. -
Page 12: Oven Diagram
Basic Information Oven Diagram 11. Auto-Touch control panel. Components 12. Time display: Digital display, 99 minutes, 99 seconds 1. Microwave oven door with see-through window. 13. Ventilation openings. 2. Door hinges. 14. Removable turntable. The turntable will rotate 3. Waveguide cover: DO NOT REMOVE. clockwise or counterclockwise. -
Page 13: Special Instructions For The Turntable Support And Turntable Glass Tray
Basic Information Special Instructions for the Turntable Support Turntable Support and Turntable Glass Tray Make sure to remove the tape at the turntable support before operation. Because the tape is attached when the product is shipped from the Oven Bottom Plate Hole factory. - Page 14 Basic Information Notes 1-12...
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Page 15: Section 2 Operation
Operation 6. When the door is opened during a cook cycle, moni- Operating Sequence Description tor switch, door sensing switch, secondary interlock The following is a description of component functions switch, and primary interlock relay are activated with during oven operation. the following results. - Page 16 Operation Figure 2-1. Microwave Oven Off Condition Figure 2-2. Oven Schematic-Microwave Oven Cooking Condition...
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Page 17: Variable Cooking
Operation Variable Cooking Ventilation Methods 1. VERTICAL VENTING When Variable Cooking Power is programmed, the 120 volts A.C. is supplied to the power transformer intermit- For this venting method, hot air rising from the conven- tently through the contacts of relay (RY-2) which is tional range below is drawn in by the hood fan motor operated by the control unit within a 32 second time through the grease filters at the right and left sides of the... -
Page 18: Sensor Cooking Condition
Operation Sensor Cooking Condition Cooking Sequence Using the SENSOR COOK function, the foods are 1. Operate the oven in sensor cooking mode by cooked without figuring time, power level or quantity. referring to the operation manual. When the oven senses enough steam from the food, it relays the information to its microprocessor which will calculate the remaining cooking time and power level The oven should not be operated on Sensor Cooking... -
Page 19: Component Descriptions
Operation Component Descriptions MONITOR SWITCH The monitor switch is activated (the contacts opened) DOOR OPEN MECHANISM by the latch head on the door while the door is closed. The door is opened by pulling the door handle down and The switch is intended to render the oven inoperative, by forward, referring to Figure 2-6. -
Page 20: Turntable Motor
Operation TURNTABLE MOTOR THERMOSTAT (70°C OFF) The turntable motor rotates the turntable located on This thermostat is located on the right base plate. It is the bottom of the oven cavity, so that the foods on the designed to automatically cut off power to the hood fan turntable cook evenly during cooking. -
Page 21: Touch Control Panel Assembly
Operation 6. Relay Circuit: Touch Control Panel Assembly A circuit to drive the magnetron, fan motor, stirrer OUTLINE OF TOUCH CONTROL PANEL motor, hood motor and light the oven lamp and cook top lamp. The touch control section consists of the following units. 7. -
Page 22: Humidity Sensor Circuit
Operation Humidity Sensor Circuit (3) Detector Circuit of Humidity Sensor Circuit: This detector circuit is used to detect the output voltage of the absolute humidity circuit to allow the (1) Structure of Humidity Sensor: LSI to control sensor cooking of the unit. When the The humidity sensor includes two thermistors as unit is set in the sensor cooking mode, 16 seconds shown in the illustration. -
Page 23: Troubleshooting Guide Chart
Troubleshooting and Testing Troubleshooting Guide When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many of the possible causes of trouble will require that a specific test be performed. These tests are given a procedure letter which will be found in the “Test Procedure “section. - Page 24 Troubleshooting and Testing...
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Page 25: Test Procedures
Troubleshooting and Testing Test Procedures Procedure Letter Component Test MAGNETRON ASSEMBLY TEST HIGH VOLTAGES ARE PRESENT DURING THE COOK CYCLE, SO EXTREME CAUTION SHOULD BE OBSERVED. DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING. 1. Disconnect the power supply cord and then remove outer case. 2. - Page 26 Troubleshooting and Testing Procedure Component Test Letter POWER TRANSFORMER TEST DO NOT TOUCH THE COMPONENTS OF THE POWER TRANSFORMER WHILE POWER TRANSFORMER IS ENERGIZED. IT IS DANGEROUS BECAUSE THIS HAS HIGH VOLTAGE COMPONENTS. (HIGH VOLTAGES ARE PRESENT AT THE HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO MEASURE THE FILAMENT AND HIGH VOLTAGE.) 1.
- Page 27 Troubleshooting and Testing Procedure Component Test Letter CAVITY THERMAL CUT-OUT TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1) 4.
- Page 28 Troubleshooting and Testing Procedure Component Test Letter SECONDARY INTERLOCK SWITCH TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1) 4.
- Page 29 Troubleshooting and Testing Procedure Component Test Letter MONITOR SWITCH TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1) 4.
- Page 30 Troubleshooting and Testing Procedure Component Test Letter HOOD THERMOSTAT TEST Thermostat (60°C ON) 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1) 4.
- Page 31 Troubleshooting and Testing Procedure Component Test Letter TOUCH CONTROL PANEL ASSEMBLY TEST The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. There- fore, unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter and ohmmeter. In this service manual, the touch control panel assembly is divided into two units, Control Unit and Glass Touch Key Unit, and troubleshooting by unit replacement is described according to the symptoms indicated.
- Page 32 Troubleshooting and Testing Procedure Component Test Letter 2. Other possible problems caused by defective control unit. a) Buzzer does not sound or continues to sound. b) Clock does not operate properly. c) Cooking is not possible. d) Fan motor, antenna motor, oven lamp or electrical parts do not turn on or do not turn off. e) Digital display on the control unit does not show anything.
- Page 33 Troubleshooting and Testing Procedure Component Test Letter RELAY TEST 1. Disconnect power supply cord, and remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1) 4. Disconnect the leads to the primary of the power transformer. 5.
- Page 34 Troubleshooting and Testing Procedure Component Test Letter PROCEDURES TO BE TAKEN WHEN THE FUSE ON THE PRINTED WIRING BOARD (PWB) IS OPEN To protect the electronic circuits, this model is provided with a fuse added to the primary on the PWB.
- Page 35 Troubleshooting and Testing Procedure Component Test Letter HUMIDITY SENSOR TEST Checking The Initial Sensor Cooking Condition THE OVEN SHOULD BE FULLY ASSEMBLED BEFORE FOLLOWING PROCEDURE. 1. The oven should be plugged in at least two minutes before sensor cooking. 2. Room temperature should not exceed 35°C. 3.
- Page 36 Troubleshooting and Testing Procedure Component Test Letter TESTING METHOD FOR HUMIDITY SENSOR AND/OR CONTROL UNIT To determine if the sensor is defective, the simplest method is to replace it with a new replacement sensor. 1. Disconnect the power supply cord, and then remove outer case. 2.
- Page 37 Troubleshooting and Testing Procedure Component Test Letter 10. Disconnect the power supply cord, and then remove outer case. 11. Open the door and block it open. 12. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1) 13. Disconnect the dummy resistor circuit from the sensor connector of control panel. 14.
- Page 38 Troubleshooting and Testing Notes 3-16...
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Page 39: Section 4 Component Teardown And Testing
Component Teardown and Testing TO PREVENT AN ELECTRIC SHOCK, TAKE THE FOLLOWING PRECAUTIONS: 1. BEFORE WIRING: 1) Disconnect the power supply. 2) Open the door and block the door open. 3) Discharge the high voltage capacitor and wait for 60 seconds. 2. -
Page 40: Removal Of Oven From Wall
Component Teardown and Testing The following adjustments or component replace- ment can be performed without removing the oven from the wall: 1. Hood lamps, sockets and grease filter. 2. Oven lamp, base cover and lamp glass assembly. 3. Turntable motor. 4. -
Page 41: Power Transformer Removal
Component Teardown and Testing Positive Lock® Connector (No-Case Power Transformer Removal Type) Removal Removal 1. Disconnect the power supply cord, and then remove 1. Disconnect the power supply cord and then remove outer case. outer case. 2. Open the door and block it open. 2. -
Page 42: Hood Fan Motor, Hood Duct, Oven Lamp Socket And Ah Sensor Removal
Component Teardown and Testing 19. Remove the hood duct from the oven cavity by lifting Hood Fan Motor, Hood Duct, Oven it up. Lamp Socket And AH Sensor 20. Release the snap band of control harness A from the Removal hood duct. -
Page 43: Magnetron Removal
Component Teardown and Testing Magnetron Removal High Voltage Rectifier And High Voltage Capacitor Removal 1. Disconnect the power supply cord and then remove outer case. 1. Disconnect the power supply cord and then remove 2. Open the door and block it open. outer case. -
Page 44: Hood Fan Thermostat (60ºc On And 70ºc Off) Removal
Component Teardown and Testing Hood Fan Thermostat (60ºC ON and Cooling Fan Motor Removal 70ºC OFF) Removal 1. Disconnect the power supply cord and then remove outer case. 1. Disconnect the power supply cord and then remove 2. Open the door and block it open. outer case. -
Page 45: Turntable Motor Removal
Component Teardown and Testing 15. Remove the two (2) screws holding the fan motor to the fan duct. 16. Now, the fan motor is free. INSTALLATION 1. Install the fan motor to the fan duct with the two (2) screws. 2. -
Page 46: Antenna Motor Removal
Component Teardown and Testing Antenna Motor Removal Stirrer Cover And Stirrer Fan Installation 1. Disconnect the power supply cord and then remove outer case. 1. Put the stirrer antenna on the wave guide to match 2. Open the door and block it open. the stirrer antenna shaft to the center of the stirrer 3. - Page 47 Component Teardown and Testing Servicing of Touch Control Panel b) On some models, the power supply cord between the touch control panel and the oven proper is long The following are descriptions of the procedures to permit enough that they may be separated from each other. servicing of the touch control panel of the microwave For those models, it is possible to check and repair oven and the precautions you must take when doing...
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Page 48: Panel Sub Assembly And Control Unit Removal
Component Teardown and Testing Panel Sub Assembly And Control Unit Door Sensing Switch / Secondary Interlock Switch And Monitor Switch Removal Removal 1. Disconnect the power supply cord. 2. Open the door and block it open. 1. Disconnect the power cord and remove outer case. 3. -
Page 49: Door Sensing Switch / Secondary Interlock Switch And Monitor Switch Adjustment
Component Teardown and Testing After adjustment, check the following: Door Sensing Switch / Secondary Interlock Switch And Monitor Switch 1. In and out play of door remains less than 0.5mm when in the latched position. First check upper Adjustment position of latch hook, pushing and pulling upper 1. -
Page 50: Door Replacement
Component Teardown and Testing Door Replacement Removal After any service to the door: (A) Make sure that door sensing switch, primary 1. from wal and remove outer case. (Refer to procedure switch and secondary switch are operating of “Removal of Oven from Wall” and “Outer case properly. -
Page 51: Door Disassembly
Component Teardown and Testing Door Disassembly DOOR FRAME 13. Remove eight (8) screws holding the door panel to 1. Disconnect the power supply cord and remove the the door frame assembly. oven from wall and remove outer case. (Refer to 14. - Page 52 Component Teardown and Testing Notes 4-14...
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Page 53: Circuit Components
Wiring Diagrams Circuit Components... -
Page 54: Glass Touch Key Unit Diagram
Wiring Diagrams Glass Touch Key Unit Diagram... -
Page 55: Control Unit Circuit
Wiring Diagrams Control Unit Circuit... -
Page 56: Oven Wiring Schematic Off Condition
Wiring Diagrams Oven Wiring Schematic Off Condition... -
Page 57: Section 6 Parts List
Parts List... -
Page 58: Parts List
Parts List... -
Page 59: Parts List
Parts List Oven And Cabinet Parts 18 5 76-4 76-4 76-1 76-2 76-3 76-4 23-2 23-1 76-5 76-6... -
Page 60: Door Assembly And Control Unit
Parts List Door Assembly and Control Unit... -
Page 61: Packing And Accessories
Parts List Packing And Accessories PACKING SUPPORT UNIT MOUNTING ANGLE DOOR PROTECTOR TOP PAD PROTECTION SHEET WRAP COVER TURNTABLE TRAY CABINET COVER TRAY PAD CUSHION DOOR PAD INFORMATION ACCESSORY ASSEMBLY RACK OPERATION MANUAL WALL TEMPLATE RACK PAD INSTALLATION INSTRUCTION TOP TEMPLATE GREASE FILTER(x2) DAMPER ASSEMBLY BOTTOM PAD... - Page 62 Parts List Notes...